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All Journal Indonesian Journal of Earth Sciences
Deogratias Anguandia Odhipio
Département de géologie de l’Université Officielle de Ruwenzori, D. R. Congo
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science

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Influence of Regional Tectonics on The Geological Formations of The Locality of Mabuku in Beni Territory Deogratias Anguandia Odhipio; Maombi Kalimuli Kakule
Indonesian Journal of Earth Sciences Vol. 2 No. 2 (2022): December
Publisher : MO.RI Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52562/injoes.v2i2.404

Abstract

The locality of Mabuku is located in the eastern DRC, in a landscape where tectonic effects are visible. The main cause of this environmental disturbance is known as tectonics. This study aims to determine the influence of regional tectonics (like Kibalian, Ruzizian and Kibarian tectonics) on rocks of the locality of Mabuku, and their types. After the fieldwork and the data processing, we got the following results: firstly, none filled faults were due to constraints of the compressive type, which are also similar to those affecting the formations of the group of Ruzizi. Secondly, the schistosity of these rocks was due to extensive type stresses and its direction is similar to Kibarian tectonics. Moreover, the veins were generated by a constraint of the compressive type, bounding them to Kibalian tectonics. In conclusion, in the locality of Mabuku there’s a combination of the Ruzizian, Kibalian, and Kibarian tectonics.
Petrographic Characterization of Geological Settings in the Locality of Mabuku in the Territory of Beni, DRC Deogratias Anguandia Odhipio; Maombi Kalimuli Kakule; Robert Nandefo Wazi
Indonesian Journal of Earth Sciences Vol. 2 No. 2 (2022): December
Publisher : MO.RI Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52562/injoes.v2i2.406

Abstract

The geology of the DRC has already been studied on regional plans, on the scale of a province or territory. But these studies are too synthetic and they do not consider the variations of petrographic facies that can occur at the scale of a locality or a village. Thus, to overcome this possibility, the present study aims to make a petrographic characterization of the rocks of the locality of Mabuku in the territory of Beni. To achieve this, we proceeded by a microscopic analysis of 10 field samples (selected on the basis of the variability of the petrographic characteristics of the rocks). Analyzes of these samples at the petrographic laboratory of the University of Nairobi in Kenya at the LPA and LPNA revealed that the lithology of the Mabuku locality consists of orthogneiss, schists, dolerite and diorite intrusions, quartzites , laterite and sandstones. However, there are four dominant formations. These are the orthogneiss found to the north; schist, dominant in the eastern part; doleritic intrusions in the northwest part; and the sandstones which are distributed along a SW-NE diagonal. Nevertheless, important gaps remain to be completed from the geochemical and metallogenic point of view in the locality of Mabuku.
Co-Authors Maombi Kalimuli Kakule Robert Nandefo Wazi